Product Highlights:Over 90% noise reductionSame click feel, no click noise10-meter reliable wireless rangePrecise advanced optical trackingCrafted for your right hand24-month battery life with auto on/offModel:910-004914Warranty:1-year limited warrantyWhat's in the box:1 x Logitech M331 Silent Plus Mouse - Black1 x Nano receiver1 x AA battery (pre-installed)1 x User documentationBox Dimensions (CM) & Weight (KG):10.5 x 6.7 x 3.84 (CM) & 0.5 (KG